1. Drive test ignition coil: including independent ignition, coil type, module type. 2. Drive test fuel injector: including 12V fuel injector for gasoline car, 12V 24V fuel injector for vehicle. 3. Drive and test solenoid valves and fuel metering valves controlled by different duty ratios. 4. Drive and test motors controlled by various duty ratios, urea pump motors, etc. 5. Drive and test idling stepper motors, instrument stepper motors, headlight tracking steering stepper motor, etc. 6. Hall signal with adjustable output frequency, amplitude and duty cycle. Used to simulate various duty cycle sensors, such as air conditioning pressure sensor (duty cycle type), air flow meter (duty cycle type), etc. 7. Power supply voltage range: 12V-24V, with reverse connection protection, overcurrent protection. 8. Electromagnetic coil drive current range: 0-3.5A 9. Output frequency range: 1HZ-100KHZ 10. Duty cycle adjustment: 1%-100% 11. Adjustable voltage: 1.25V-11.5V Tips: The product may be